Ohio Revised Code Title XLVII. Occupations Professions § 4713.41

(A)(1) An individual holding a current, valid cosmetologist license or boutique services registration pertaining to the branch of cosmetology services performed at the salon or boutique salon, shall have charge of and immediate supervision over the salon at all times when the salon is open for business except as permitted under division (A)(2) of this section.

(2) A business establishment that is engaged primarily in retail sales but is also licensed as a salon shall have present an individual holding a current, valid license or registration to practice in that type of salon in charge of and in immediate supervision of the salon during posted or advertised service hours, if the practice of cosmetology is restricted to those posted or advertised service hours.

(1) Provide potable running hot and cold water and proper drainage;

(2) Sanitize all instruments and supplies used in the branch of cosmetology provided at the salon;

(3) If cosmetic therapy, massage therapy, or other professional service is provided at the salon under section 4713.42 of the Revised Code, sanitize all instruments and supplies used in the cosmetic therapy, massage therapy, or other professional service.